Titus, If you want to do it you would need a 10K resistor to Ground as a pull down resistor. You alway need a load to put to pin into the default state your looking for. The resistor will hold the interrupt pin in the low state until pin 17 is set high and the interrupt pin should go to the high state also. Now I have never try this myself but I'd bet dollars to donuts it should work. As always if someone thinks I'm off base please let me know.

Titus, I had another thought on this. if your calling a Function or subroutine in your interrupt. so in your program instead of making an output pin high you could call your function or subroutine. Note us old school guys like the term subroutine. If you can do it in the program it would make it much simpler.